Sandstone
Arenite (SiO2 based)
sedimentary
Category
Anthropogenic (Man Made Material Mimicking Sedimentary Rock)
Browse anthropogenic (man made material mimicking sedimentary rock) specimens identified by the Rock Identifier community.
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Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Sandstone with Iron Staining
Arenite (SiO2 with FeO(OH) impurities)
sedimentary
Jasper
Silicon Dioxide (Microcrystalline Quartz), SiO2
sedimentary
Chalcedony (Common Opal or Agate variant)
Silicon dioxide (SiO2) with trace hydration
mineral
Banded Chert
Silicon Dioxide (SiO2)
sedimentary
Chert (Yellow Jasper/Flint pebble)
Microcrystalline Quartz (SiO2)
sedimentary
Fossiliferous Limestone
Biogenic Limestone (Calcium Carbonate, CaCO3)
sedimentary
Tree Agate
Chalcedony (SiO2)
gemstone
Tumbled Red Jasper
Quartz (Microcrystalline variety of chalcedony, SiO2)
mineral
Jasper
Microcrystalline Quartz (Chalcedony), SiO2
sedimentary
Goethite / Limonite Concretion
Iron Hydroxide Oxide (FeO(OH))
sedimentary
Asphalt Conglomerate
Artificial Bituminous Conglomerate
sedimentary
Jasper
Silicon dioxide (Microcrystalline Quartz, SiO2)
sedimentary
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Jasper
Microcrystalline quartz (SiO2)
sedimentary
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Chert / Flint
Cryptocrystalline quartz (SiO2)
sedimentary
Jasper
Silicon dioxide (SiO2) with impurities
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Pyrite
Iron Sulfide (FeS2)
mineral
Chert (Jasper variation)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Jasper)
Silicon Dioxide (SiO2)
sedimentary
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Banded Chert
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Flint)
Cryptocrystalline Quartz (SiO2)
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Chert / Flint
Silicon Dioxide (SiO2)
sedimentary
Limestone
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Pearls (likely freshwater cultured pearls)
Pearl: nacre, primarily aragonite (CaCO₃) with conchiolin
gemstone
Chert
Microcrystalline quartz (SiO2)
sedimentary
Sandstone
Arenite (mainly SiO2 with varying cements)
sedimentary
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
sedimentary
Limestone (River Stone)
Limestone (Calcium Carbonate, CaCO3)
sedimentary
Marble
Recrystallized Calcite (CaCO3)
metamorphic
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Sandstone
Sandstone (composed mainly of SiO2)
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Green Fluorite
Calcium Fluoride (CaF2)
mineral
Diamond
Carbon (C)
mineral